A question about US Mint proof sets.

[Electronic Chaos]

Ever since I was about 3, my grandpa has bought my sister and I US Mint proof sets every Christmas. Except, apparently this year they'd sold out of them. But that's not what this is about.

After he found out he wasn't getting any from where he usually gets them (probably the US mint), he decided to check out a coin dealer. Well, the coin dealer had none, either, but during the course of conversation, the coin dealer did mention that 2001 sets had gotten to be quite valuable (about 4 times the original price). Now obviously I could check and see how much the set I have is worth, and if it's one of the more valuable ones I could sell it.

The question is, however, would it be wise to sell it right now? Or should I wait and see if the value goes up any more? Should I just hold on to the sets indefinitely and have them as an heirloom should I ever decide to reproduce/adopt?

Are there any coin collectors in the house that might be able to predict the price of the coin sets over the next 10+ years? Also, are there any sets of remarkable value between ~1986 and now? Any help would be appreciated greatly.

(As a side note, I'm in the process of moving right now, so any response could be delayed a few days, though I probably will be able to respond this evening. Hopefully.)

[Chefguy]

I don't understand why you would want to sell something your grandfather has given you as an investment, but to each his own. An unbroken set of almost anything is worth more than the individual parts. Same applies to most coins. The value will increase in future years with the addition of more sets, but it's impossible to predict the value, as it will fluctuate with both general demand and the price of silver (if you are getting the proof silver sets). As to increased value of individual sets, some of the silver sets have gone up (including the 2001 silver set, which is worth about $100), but it's primarily the Prestige sets, which they quit making in 1997.